Crank-case repair arm



. tus.

Patented July 12, 1927.

UNITED STATES CRANK-CASE REPAIR ARM.

Application led September 17, 1925. Serial No. 56,832.

The object of this invention is to provide a crank case repair armwhich is easily applied and provides means to compensate for lack of alinement of the bolt holes which are in the chassis and `crank case.

In certain makes of cars (notably Fords), a bracket is welded on to the crank case below the lower section seam and thisbracket is adapted to be bolted to the chassis of the machine to support the crank case and engine thereon. As often happens, this bracket breakslabove the weld and it then becomes a difficult problem to support the engine rigidly on the chassis. v

Brackets have been devised which are bolted in with the bolts which secure the lower section of the crank case to the upper section and an arm of the bracket extends over the channel of the chassis andis bolted in the bolt hole provided for the original bracket. f

These bolt holes do not always register and a resulting strain is left on the appara- In some cases, the bolt holes are in a vdifferent relative position on one side than on the other side of the chassis. Due to the location of certain 4apparatus on one side of the car, the Vcrank case design may not be v syimnetrical.

The condition has been metby the pro-` vision of slotted holes but due to the weakening of the bracket and correspondingly less secure nature of the connection, this connection has not proved entirely satisfactory. In accordance with the present invention, an adapter is provided which automati-V cally seats itself in the bolt hole of the bracket and thus performs the function of the slotted hole without causing the corresponding weakening of the bracket.

It therefore is desirable to provide a repair bracket which may be used for different relations of holes and to more fully describe such an embodiment attention is invited to the drawings wherein:

Figure l is a. plan view of part of the chassis of an automobile showing the crank case supported by the improved form of bracket.

Figure 2 is a section of the bracket attached to the channel of the chassis, taken on the line 22 of Figure l and looking in the direction of the arrows.

Figure 3 is a section on the line 3 3 of Figure 2 and looking in the direction of the arrows.

Figure 4 is a view in perspective showing the design of the bracket.

Figure 5 is a plan view of theV selfeadjusting plug which compensates for thedifferences in location of the cooperating bolt holes in the bracket and channel. Y

Figure G is a section on line 64-6 of Figure 5 and looking in the direction of the arrows. Y

rlhe bracket a is provided with a top flange which rests on the chassis 0 and bottom flanges consistingof inwardly extending toes d tok engage under the crank case flange e ofthe crank case Bolts g ofthe crank case serve tosecure the bracket, as clearly shown in Figures l and 3.

The body lo and the top fiange of the bracket have holes z' drilled therein and tapered, as shown in Figure 3, so that the bolts j and fit loosely therein.v The bolt j runs through the side of the channel and braces the bracket against lateral motion. The bolt secures the top flange to the channel. y Within the tapered holes vl are placed c-onically shaped plugs Z which fit snugly into the taperedl holes and provide firm seats therein. In these plugs are provided bolt holes m whichv receive the bolts/j or k, and these bolt holes are eccentricallyM positioned with respect to the center of the plugs.

It will thus be seen that when thebracketl is placed in position to be bolted to the frame, the plugs will automatically aline the center of their bolt holes m with the bolt holes n in the chaimel'member.v Their ec centricity will adjust them with respect to the fixed axes through the bolt holes and' thus provide a rigid and strong connection wherein all portions of the bracket around the bolt contribute equally to the support of the crank case. The disadvantage of the weakness of a slot connection to provide for adjustment of the bracket is thus overcome. The friction between' the plug and bracket due to the drawing up on the bolt produces a clutching action between the conical seat Vand wall of the plug which prevents the turning of the bracket with respect to the supporting member when assembled on the latter and thus there results the rigidity possessed by a bracket-with the usual bolt hole therein.

What I claim is:

l. A supporting bracket comprising an upperflange to engage a supporting member and lower flanges to engagea supported llo member, means to secure the lower flange to the supported member, an 'oversized bolt hole in the upper `,flange adapted to over-lie a (5o-operating bolt hole in the supporting member, a co-operating plug` adapted to be disposed in the bolt hole and having` an eccentric bolt hole therein, and a b'olt to engage the co-operating holes of the respective members whereby in seating the flange on the supporting member the plug will be automatically adjusted so that its bolt hole alines with that of the supporting member.

2. A supporting bracket comprising an upper flange to engage a supporting member and lower flanges to engage a supported member, means Ato secure the lower flange to the supported member, an oversized tapered bolt hole in the upper flange adapted to overlie a cooperating bolt hole in the supporting member, a cooperating tapered plug adapted to be seated in the tapered bolt hole and having an eccentric bolt hole therein, and a bolt to engage the cooperating holes of the respective members whereby in seating the flange on the supporting member the plug will vbe automatically adjusted so that its bolt hole alines with that of the supporting member.

3. A supporting bracket comprising an upper flange to 'engage a supporting member and lower flanges to engage a supported member, means to secure the lower flanges to the supported member, an oversized tapered bolt hole in the upper flange adapted to secure against forces exerted on the supported member in one direction, and a similar bolt hole in the bodyof bracket to secure against forces in another direction, said holes adapted to overlie cooperating bolt holes in the sup porting member, cooperating tapered plugs adapted to be seated in the tapered bolt vholes andhaving eccentric bolt holes therein, and bolt-s to engage the cooperating holes 'oit the respective members whereby in seating` the flange on the supporting member the plugs will be automatically adjusted so that their bolt holes aline with those of the supporting member. Y

4. A bracket including a plurality of securing flanges, oversized tapered bolt holes in the bracket adaptors fitting in the oversized holes and being tapered to cooperate therewith, Vand bolt holes in the adapters eccentric with the axes of the adapters whereby the friction between the seat and adapter due to drawing up on the bolt clutches the two securely together.

5; vA bracket including a .plurality of securing flanges, oversized conical bolt holes in the bracket, adapters formed as truncated cones, and adapted to be seated in the oversized holes, and bolt holes through the adapters eccentric with the axes of the adapters, whereby the bolthole in the adapter may be alined with its cooperating bolt hole in the support to compensate for appreciable \i'ariation in` structureand the triction` between the seat and adapter due to drawing up on the bolt, clutches the two securely together.

This specification signed this 12 day of September A. D. 1925.

HENRY Y. HOOPER. 

